ABAP Select data from SAP table RMXMS_PLKO_MR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RMXMS_PLKO_MR table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to RMXMS_PLKO_MR. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the RMXMS_PLKO_MR table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_RMXMS_PLKO_MR TYPE STANDARD TABLE OF RMXMS_PLKO_MR,
      WA_RMXMS_PLKO_MR TYPE RMXMS_PLKO_MR,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <RMXMS_PLKO_MR> TYPE RMXMS_PLKO_MR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RMXMS_PLKO_MR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RMXMS_PLKO_MR
  INTO TABLE IT_RMXMS_PLKO_MR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMXMS_PLKO_MR
*  INTO TABLE @DATA(IT_RMXMS_PLKO_MR2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_RMXMS_PLKO_MR INDEX 1 INTO DATA(WA_RMXMS_PLKO_MR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RMXMS_PLKO_MR ASSIGNING <RMXMS_PLKO_MR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMXMS_PLKO_MR>-DATUV = 1.
<RMXMS_PLKO_MR>-TECHV = 1.
<RMXMS_PLKO_MR>-AENNR = 1.
<RMXMS_PLKO_MR>-LOEKZ = 1.
<RMXMS_PLKO_MR>-PARKZ = 1.

ENDLOOP.

LOOP AT IT_RMXMS_PLKO_MR INTO WA_RMXMS_PLKO_MR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMXMS_PLKO_MR-ANDAT, sy-vline,
  WA_RMXMS_PLKO_MR-ANNAM, sy-vline,
  WA_RMXMS_PLKO_MR-AEDAT, sy-vline,
  WA_RMXMS_PLKO_MR-AENAM, sy-vline,
  WA_RMXMS_PLKO_MR-VERWE, sy-vline,
  WA_RMXMS_PLKO_MR-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMXMS_PLKO_MR you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_RMXMS_PLKO_MR TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_RMXMS_PLKO_MR INTO WA_RMXMS_PLKO_MR.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field QVEVERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-QVEVERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-QVEVERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field QVERSNPRZV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-QVERSNPRZV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-QVERSNPRZV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field ISTRU
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-ISTRU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-ISTRU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STUPR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-STUPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-STUPR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CLNDR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-CLNDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-CLNDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KONPT, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_KONPT_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field STLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-STLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-STLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-STLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-STLAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR_AUS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXMS_PLKO_MR-AENNR_AUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXMS_PLKO_MR-AENNR_AUS.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RMXMS_PLKO_MR_STR, 
DATUV TYPE STRING,
TECHV TYPE STRING,
AENNR TYPE STRING,
LOEKZ TYPE STRING,
PARKZ TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
VERWE TYPE STRING,
WERKS TYPE STRING,
STATU TYPE STRING,
VAGRP TYPE STRING,
AESZN TYPE STRING,
ABDAT TYPE STRING,
ABANZ TYPE STRING,
PROFIDNETZ TYPE STRING,
KOKRS TYPE STRING,
QVEWERKS TYPE STRING,
QVEMENGE TYPE STRING,
QVEVERSION TYPE STRING,
QVEDATUM TYPE STRING,
QVEGRUPPE TYPE STRING,
QVECODE TYPE STRING,
QDYNREGEL TYPE STRING,
QDYNHEAD TYPE STRING,
QPRZIEHVER TYPE STRING,
QVERSNPRZV TYPE STRING,
QKZRASTER TYPE STRING,
QDYNSTRING TYPE STRING,
STRAT TYPE STRING,
PPOOL TYPE STRING,
ISTRU TYPE STRING,
IWERK TYPE STRING,
ANLZU TYPE STRING,
ARBID TYPE STRING,
EXTNUM TYPE STRING,
DELKZ TYPE STRING,
ARBTY TYPE STRING,
STUPR TYPE STRING,
CLNDR TYPE STRING,
PRTYP TYPE STRING,
REODAT TYPE STRING,
NETID TYPE STRING,
FLG_CHK TYPE STRING,
PSPNR TYPE STRING,
TTRAS TYPE STRING,
KZKFG TYPE STRING,
PLNNR_ALT TYPE STRING,
FLG_CAPO TYPE STRING,
STLTY TYPE STRING,
STLNR TYPE STRING,
STLAL TYPE STRING,
SLWBEZ TYPE STRING,
PPKZTLZU TYPE STRING,
CHRULE TYPE STRING,
CCOAA TYPE STRING,
ST_ARBID TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
FLG_SEL TYPE STRING,
FLG_INV TYPE STRING,
VBKZ TYPE STRING,
DATUB TYPE STRING,
AENNR_AUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMXMS_PLKO_MR_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_RMXMS_PLKO_MR_STR-DATUV sy-vline 
WA_RMXMS_PLKO_MR_STR-TECHV sy-vline 
WA_RMXMS_PLKO_MR_STR-AENNR sy-vline 
WA_RMXMS_PLKO_MR_STR-LOEKZ sy-vline 
WA_RMXMS_PLKO_MR_STR-PARKZ sy-vline 
WA_RMXMS_PLKO_MR_STR-ANDAT sy-vline 
WA_RMXMS_PLKO_MR_STR-ANNAM sy-vline 
WA_RMXMS_PLKO_MR_STR-AEDAT sy-vline 
WA_RMXMS_PLKO_MR_STR-AENAM sy-vline 
WA_RMXMS_PLKO_MR_STR-VERWE sy-vline 
WA_RMXMS_PLKO_MR_STR-WERKS sy-vline 
WA_RMXMS_PLKO_MR_STR-STATU sy-vline 
WA_RMXMS_PLKO_MR_STR-VAGRP sy-vline 
WA_RMXMS_PLKO_MR_STR-AESZN sy-vline 
WA_RMXMS_PLKO_MR_STR-ABDAT sy-vline 
WA_RMXMS_PLKO_MR_STR-ABANZ sy-vline 
WA_RMXMS_PLKO_MR_STR-PROFIDNETZ sy-vline 
WA_RMXMS_PLKO_MR_STR-KOKRS sy-vline 
WA_RMXMS_PLKO_MR_STR-QVEWERKS sy-vline 
WA_RMXMS_PLKO_MR_STR-QVEMENGE sy-vline 
WA_RMXMS_PLKO_MR_STR-QVEVERSION sy-vline 
WA_RMXMS_PLKO_MR_STR-QVEDATUM sy-vline 
WA_RMXMS_PLKO_MR_STR-QVEGRUPPE sy-vline 
WA_RMXMS_PLKO_MR_STR-QVECODE sy-vline 
WA_RMXMS_PLKO_MR_STR-QDYNREGEL sy-vline 
WA_RMXMS_PLKO_MR_STR-QDYNHEAD sy-vline 
WA_RMXMS_PLKO_MR_STR-QPRZIEHVER sy-vline 
WA_RMXMS_PLKO_MR_STR-QVERSNPRZV sy-vline 
WA_RMXMS_PLKO_MR_STR-QKZRASTER sy-vline 
WA_RMXMS_PLKO_MR_STR-QDYNSTRING sy-vline 
WA_RMXMS_PLKO_MR_STR-STRAT sy-vline 
WA_RMXMS_PLKO_MR_STR-PPOOL sy-vline 
WA_RMXMS_PLKO_MR_STR-ISTRU sy-vline 
WA_RMXMS_PLKO_MR_STR-IWERK sy-vline 
WA_RMXMS_PLKO_MR_STR-ANLZU sy-vline 
WA_RMXMS_PLKO_MR_STR-ARBID sy-vline 
WA_RMXMS_PLKO_MR_STR-EXTNUM sy-vline 
WA_RMXMS_PLKO_MR_STR-DELKZ sy-vline 
WA_RMXMS_PLKO_MR_STR-ARBTY sy-vline 
WA_RMXMS_PLKO_MR_STR-STUPR sy-vline 
WA_RMXMS_PLKO_MR_STR-CLNDR sy-vline 
WA_RMXMS_PLKO_MR_STR-PRTYP sy-vline 
WA_RMXMS_PLKO_MR_STR-REODAT sy-vline 
WA_RMXMS_PLKO_MR_STR-NETID sy-vline 
WA_RMXMS_PLKO_MR_STR-FLG_CHK sy-vline 
WA_RMXMS_PLKO_MR_STR-PSPNR sy-vline 
WA_RMXMS_PLKO_MR_STR-TTRAS sy-vline 
WA_RMXMS_PLKO_MR_STR-KZKFG sy-vline 
WA_RMXMS_PLKO_MR_STR-PLNNR_ALT sy-vline 
WA_RMXMS_PLKO_MR_STR-FLG_CAPO sy-vline 
WA_RMXMS_PLKO_MR_STR-STLTY sy-vline 
WA_RMXMS_PLKO_MR_STR-STLNR sy-vline 
WA_RMXMS_PLKO_MR_STR-STLAL sy-vline 
WA_RMXMS_PLKO_MR_STR-SLWBEZ sy-vline 
WA_RMXMS_PLKO_MR_STR-PPKZTLZU sy-vline 
WA_RMXMS_PLKO_MR_STR-CHRULE sy-vline 
WA_RMXMS_PLKO_MR_STR-CCOAA sy-vline 
WA_RMXMS_PLKO_MR_STR-ST_ARBID sy-vline 
WA_RMXMS_PLKO_MR_STR-UMREZ sy-vline 
WA_RMXMS_PLKO_MR_STR-UMREN sy-vline 
WA_RMXMS_PLKO_MR_STR-FLG_SEL sy-vline 
WA_RMXMS_PLKO_MR_STR-FLG_INV sy-vline 
WA_RMXMS_PLKO_MR_STR-VBKZ sy-vline 
WA_RMXMS_PLKO_MR_STR-DATUB sy-vline 
WA_RMXMS_PLKO_MR_STR-AENNR_AUS sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.